/Engine/Plugins/Runtime/RigVM/Source/RigVMDeveloper/Public/RigVMModel/RigVMController.h
Changes the data type of all nodes matching a given variable name.
void OnExternalVariableTypeChangedFromObjectPath ( const [FName](API\Runtime\Core\UObject\FName) & InVarName, const [FString](API\Runtime\Core\Containers\FString) & InCPPType, const [FString](API\Runtime\Core\Containers\FString) & InCPPTypeObjectPath, bool bSetupUndoRedo )